On Jan. 29, 1861, Kansas entered the Union as the 34th state.
To honor Kansas' 152nd birthday, the Butler County History Center and Kansas Oil Museum, located at 383 E. Central, will host a birthday party for the state from 1 to 3 p.m. Saturday.
Cost is regular admission, which is $4 for adults, $3 for seniors over 65 and $2 for students ages 6-18.
Members and children under 5 will be admitted at no charge.
In addition to museum tours, there will be children's activities and refreshments.
Kansas' entrance into the Union was not a calm one. In 1854, the Kansas Territory was formed thanks to the Kansas-Nebraska Act.
To appease Southern interests, Illinois Senator Stephen Douglas inserted into the Kansas-Nebraska Act a provision for "popular sovereignty."
This meant the settlers would choose whether Kansas would be a free state or a slave state. Pro-slavery and anti-slavery settlers soon descended on the territory.
A tumultuous, bloody seven-year struggle ensued before the abolitionists finally prevailed.
Several months after Kansas was admitted to the Union as a free state, the Civil War officially began with the attack on Fort Sumter on April 12, 1861.